ADM811MARTZ-REEL

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Introduction:

The ADM811MARTZ-REEL is a Micro-Power Voltage Supervisor from Analog Devices. It is a micro-power voltage supervisor designed to support the basic needs for power system supervisor circuits. It is most suitable for monitoring a power supply voltage and providing system reset when desired. The device also provides a pushbutton and external reset input for system control and power down operations. The ADM811MARTZ-REEL belongs to a category of power management integrated circuit (PMIC) called Supervisors.

Application Field:

The ADM811MARTZ-REEL is ideal for a variety of applications requiring low power, accurate voltage supervision and reset logic in microcontroller-based and other electronic systems. It can be used in battery and power supply applications, watching for undervoltage or overvoltage conditions and providing reset or alert signal. Typical applications for ADM811MARTZ-REEL include embedded systems and battery-operated devices, such as personal digital assistants, notebook computers, handheld radars and cameras, and other devices requiring power management.

Working Principle:

The ALM811MARTZ-REEL is specifically designed to monitor the system power supplies. It can detect overvoltage and undervoltage conditions, as well as providing a reset output signal to the microcontroller or other system. Its self-monitoring feature ensures that it remains in a low power consumption state whenever the supply voltage falls below a user-selectable threshold. The reset output is an open-drain structure that can be used with an external pull-up resistor to generate a reset signal. The device features an external reset input to override the reset output, allowing manual reset control.

The ADM811MARTZ-REEL provides two independent reset comparators, one for the undervoltage trip point and the other for the overvoltage trip point. Each comparator has its own independent functionality and operation, enabling the detection of undervoltage and overvoltage conditions. Adjustment of the operating voltage is done through two externally accessible trim pins that allow for setting the desired voltage trip points.

Features:

The ADM811MARTZ-REEL offers a variety of features for efficient system control. These features include low supply current, precision voltage reference and power-on reset, brown-out and power-fail interrupt, adjustable undervoltage and overvoltage trip points, external reset toggle, and pushbutton reset. The device\'s low supply current allows it to be used in applications that require long battery life or extended operation away from a power source. The precision voltage reference feature ensures that the device accurately monitors the system voltage while operating under low voltage conditions. The power-on reset and brown-out interrupt features provide additional reset control capabilities to ensure system integrity in the event of power supply conditions that put the system in a potentially unstable state. The adjustable undervoltage and overvoltage trip points can be programmed to suit the needs of the particular application. The external reset toggle and pushbutton reset provide users with convenient reset control options.

Conclusion:

The ADM811MARTZ-REEL is a micro-power voltage supervisor designed to support basic needs for power system supervisor circuits. The device offers a variety of features including low supply current, precision voltage reference, adjustable undervoltage and overvoltage trip points, power-on reset and brown-out interrupt, external reset toggle, and pushbutton reset. The ADM811MARTZ-REEL is an ideal solution for applications requiring accurate voltage supervision, reset logic and long battery life. It is thus suitable for embedded systems and battery-operated devices, such as personal digital assistants, notebook computers and handheld electronic devices.

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